Patents Examined by Rachel A Vierra
  • Patent number: 10531915
    Abstract: Electrosurgical forceps for delivering microwave energy into biological tissue from a non-resonant unbalanced lossy transmission line structure located within or formed by the jaws of the forceps. The transmission line structure may be formed across the gap between the jaw element by opposed conductive elements, which are respectively electrically connected to inner and outer conductors of a coaxial cable. Alternatively, each jaw element may comprise its own lossy transmission line, whereby a power splitter is used to divide microwave energy from the coaxial cable. The forceps may be used endoscopically in the gastrointestinal tract or laparoscopically or in open surgery.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 14, 2020
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Paul Hancock, Malcolm White
  • Patent number: 10531918
    Abstract: Electrosurgical forceps for delivering microwave energy into biological tissue from a non-resonant unbalanced lossy transmission line structure located within or formed by the jaws of the forceps. The transmission line structure may be formed across the gap between the jaw element by opposed conductive elements, which are respectively electrically connected to inner and outer conductors of a coaxial cable. Alternatively, each jaw element may comprise its own lossy transmission line, whereby a power splitter is used to divide microwave energy from the coaxial cable. The forceps may be used endoscopically in the gastrointestinal tract or laparoscopically or in open surgery.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: January 14, 2020
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Paul Hancock, Malcolm White
  • Patent number: 10492860
    Abstract: A balun includes a center conductor, a dielectric material, a tapered wall, a ring, and a prong. The center conductor extends a length of the balun. The dielectric material surrounds the center conductor along the length of the balun. The tapered wall forms a portion of a tube between a first wall and a second wall. The first wall is opposite the second wall. The tapered wall is formed of a conductive material. The portion of the tube forms a slot exposing the dielectric material. The ring connects to the second wall of the tapered wall and is formed of the conductive material. The ring forms a tube surrounding the center conductor and the dielectric material. The prong connects to the ring to extend toward the first wall and is formed of the conductive material. The prong extends over a portion of the dielectric material exposed by the slot.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: December 3, 2019
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Susan C. Hagness, Nader Behdad, Hung Thanh Luyen
  • Patent number: 10470816
    Abstract: A multi-function high-frequency tool for an endoscope, comprising an insert portion and a handle portion, the insert portion comprising an insulating tip, a first electrode having a needle-knife function, a second electrode having an IT-knife function, and a spray head; the handle portion comprising a first slider, a connector, an injection connector, and a second slider. The second electrode has a hollow structure, and the first electrode extends through the second electrode; the proximal end of the first electrode is fixedly connected by means of a mandrel connecting member to the distal end of a mandrel; the proximal end of the mandrel is connected to the first slider of the handle portion, and moves axially on the handle portion by means of the first slider, thereby causing the first electrode to expose from/retract into the second electrode.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 12, 2019
    Assignee: ANREI MEDICAL (HANGZHOU) CO., LTD.
    Inventors: Huazhen Zhou, Shuren Ma, Zhuo Yang, Zhifeng Zhao, Rongnan Zhang
  • Patent number: 10363095
    Abstract: A microwave ablation system incorporates a microwave thermometer that couples to a microwave transmission network connecting a microwave generator to a microwave applicator to measure noise temperature. The noise temperature is processed to separate out components the noise temperature including the noise temperature of the tissue being treated and the noise temperature of the microwave transmission network. The noise temperature may be measured by a radiometer while the microwave generator is generating the microwave signal or during a period when the microwave signal is turned off. The microwave ablation system may be configured as a modular system having one or more thermometry network modules that are connectable between a microwave applicator and a microwave generator. Alternatively, the modular system includes a microwave generator, a microwave applicator, and a microwave cable that incorporate a microwave thermometry network module.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: July 30, 2019
    Assignee: COVIDIEN LP
    Inventor: Joseph D. Brannan
  • Patent number: 10357580
    Abstract: An electrode arrangement for forming a dielectric barrier plasma discharge between a flat surface (4) of the electrode arrangement and a surface to be treated which functions as a counter surface and on which a fluid can collect, comprising a flat electrode (14) which can be connected to a high-voltage source by means of a connector and which is completely embedded in a flat dielectric (2), except for the connector for the high-voltage source, wherein the dielectric (2) forms an upper surface (1) and a lower surface (4) which appears as a flat surface to the surface to be treated, enables the drainage or supply of a fluid by means of a simple design.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: July 23, 2019
    Assignee: CINOGY GmbH
    Inventors: Leonhard Trutwig, Mirko Hahnl, Karl-Otto Storck, Matthias Kopp, Annika Schaefer, Dirk Wandke
  • Patent number: 10292759
    Abstract: An end effector assembly of a forceps includes a first jaw member and a second jaw member. The first jaw member and the second jaw member are selectively positionable relative to one another. At least one of the jaw members includes an electrically conductive tissue engaging surface configured to connect to an electrosurgical energy source, and at least one of the jaw members includes two blade channels defined therein and extending therealong and a feed in member selectively positioned between the two blade channels. The end effector further includes a cutting blade that is translatable such that selective positioning of the feed in member enables the cutting blade to selectively enter into at least one of the two blade channels.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 21, 2019
    Assignee: GYRUS ACMI, INC.
    Inventors: Huisun Wang, Kester J. Batchelor
  • Patent number: 10213245
    Abstract: Systems and methods for continuous infusion of a fluid, which may be heated, into a balloon catheter. A system for balloon inflation, the system comprising a catheter having an inflow lumen and an outflow lumen, a balloon positioned at a distal end of the catheter, the balloon being in fluid communication with the inflow and the outflow lumen, and an infusion device in fluid communication with the balloon through the inflow and outflow lumens, the infusion device configured for continuously circulating a fluid into and out of the balloon to maintain the balloon at a constant pressure and volume by matching a flow of the fluid into the balloon via the inflow lumen with a flow of the fluid out of the balloon via the outflow lumen in order to keep the balloon volume and pressure constant during an entire infusion.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 26, 2019
    Assignee: PAVmed Inc.
    Inventors: Lishan Aklog, Brian J. deGuzman
  • Patent number: 10117700
    Abstract: A vessel dissector for harvesting a target vessel has a tubular member carrying a blunt transparent tip with a terminus for blunt dissection of tissue and a base affixed to the tubular member. An active ring set has first and second ring segments mounted to distal ends of respective manipulator bars in the tubular member. The ring segments juxtapose to define a closed loop with an inner diameter larger than the outside diameter of the tip base. The ring segments are movable between a retracted position nested at the base and respective extended positions distally forward of the terminus. At least one of the ring segments is energizable to cut and cauterize a cylindrical pedicle including the target vessel. The ring segments independently extend longitudinally to provide a variable gap between the ring segments to capture, cut, and cauterize side branches to the target vessel between the ring segments.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 6, 2018
    Assignee: TERUMO CARDIOVASCULAR SYSTEMS CORPORATION
    Inventors: Randal J. Kadykowski, Kevin R. Line